Molecules do not have enough kinetic energy to overcome the intermolecular bonds.
Answer:
Option C: Observation
Explanation:
The first and foremost step in the process of scientific inquiry is observation. Because, until there is no observation there are no questions to Ask. Having high quality observation is too much valuable in scientific process.
"Possible explanation" gives you a clue.
It is A Hypothesis because it an education guess or possible explanation to a question.